SOLUTION: Factor as the difference of two squares. Be sure to factor completely. 9x^2 - 1

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Question 377504: Factor as the difference of two squares. Be sure to factor completely.
9x^2 - 1

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi,

Factoring as the difference of two squares

9x^2 - 1 

(3x-1)(3x +1)

Note:SUM of the inner product(-3x) and the outer product(3x) = 0